Jabuticaba Index®

Categorizing Brazilian singularities. From the capybara to the precatório.

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Urban · #9 of 26

Separate social and service elevators in ordinary apartment buildings

Two elevators: one for residents and guests, another for staff and deliveries. Architecture that needs no sociology, because the floor plan explains everything.

Fictional dataHidden jabuticaba

Jabuticaba Index®

87%

Plausibility range: 84–89%

87%, plausibility range 84% to 89%0255075100
A

Evidence grade. Computed from source types: from A (official and academic data) to D (editorial judgment). It does not change the index.

01What exactly is being measured

Residential buildings with two elevators separated by type of user: residents and guests on one side, staff and deliveries on the other.

02Context

The separation shows up in architectural plans [1] and in few countries surveyed [2].

03Where else it exists

Projection
Argentina: RegionalBrazilIndia: RegionalUnited States: Marginal – RegionalSouth Africa: Marginal
Argentina: RegionalBrazilIndia: RegionalUnited States: Marginal – RegionalSouth Africa: Marginal
  • Local presence(Marginal → Widespread)
  • Exported from Brazil(Marginal → Widespread)
  • Brazil
  • Absent (checked)
  • No data

Equal Earth projection. Places with uncertain presence take the color of the highest possible level; the table shows the full range.

Place (4)
PlacePresenceWeightSources
ArgentinaRegional0.5[2]
IndiaRegional0.5[2]
United StatesMarginal – Regional0.1–0.5[2]
South AfricaMarginal0.1[2]
Presence abroad1.2–1.6

04How we got this number

Presence abroad

Sum of each place's weight: widespread = 1, regional = 0.5, marginal = 0.1. Where it only exists as a Brazilian export, the weight is multiplied by 0.5.

1.4 (1.2–1.6)
Exclusivity E

From 0 (exists everywhere) to 1 (only in Brazil), on a log scale.

0.81 (0.79–0.83)
Intensity I

How much more common it is in Brazil than in the other places where it exists.

Common in middle-class buildings in Brazil; abroad, limited to niches (fictional data). [1]

2–3 of 4
Rarity coefficient R

R = E + 0.5 × (I ÷ 4) × (1 − E)

R = 0.81 + 0.5 × (2.5 ÷ 4) × (1 − 0.81) = 0.87

0.87
Jabuticaba Index®
87% (84–89%)

Not part of the score

AwarenessHidden jabuticaba

How aware Brazilians are that this is rare abroad.

Seen as a practical arrangement, not a peculiarity. editorial judgment

0 of 4

05Sources

  1. [1]

    Relatório Anual da Associação Hipotética

    Associação Brasileira de Coisas Hipotéticas · Nov 2025 · Organization · in Portuguese

    example.org/fictional-association · accessed Sep 25, 2026

  2. [2]

    A. Nonymous, P. Laceholder. A Global Survey of Allegedly Unique Things

    University of Nowhere Press · Jun 2024 · Academic

    example.org/fictional-survey · accessed Sep 25, 2026

Last reviewed Sep 25, 2026 · Methodology v0.2